Zapletalova A, Pata V, Janis R, Kejlova K, Stoklasek P
Department of Fat, Surfactant and Cosmetics Technology, Tomas Bata University in Zlin, Zlin, Czech Republic.
Department of Production Engineering, Tomas Bata University in Zlin, Zlin, Czech Republic.
Skin Res Technol. 2017 Aug;23(3):346-353. doi: 10.1111/srt.12341. Epub 2017 Jan 12.
The aim of this article is to present a new methodology for assessment of skin topology using a three-dimensional image (3D).
The measurement of the skin surface roughness is based on 3D scanning of silicone replicas by chromatic aberration length technique in a contactless manner, i.e. by a polychromatic light beam. Analysis of the skin surface reprints was performed using Talymap, Gold version. Results were analysed by fractal geometry, which allows to evaluate changes of the skin surface before and after application of cosmetics and instrumental cosmetological techniques. The methodology was applied for objective assessment of the effects of diamond microdermabrasion on the skin surface roughness. Measurements were performed on 23 volunteers in the age group of 31-67 years.
Based on the results of skin surface scanning after the treatment with diamond microdermabrasion it may be concluded that inequalities of the skin surface are reduced immediately after exfoliation. However, this effect mostly diminishes within 14 days after treatment. The entire study ultimately suggests that the instrumental method used only leads to improvement of the skin surface immediately after its application. Thermo vision images of the skin surface temperature were obtained during the application of the abrasive method. The experimental results showed that the skin is rather cooled than heated by the treatment.
This study is focused on the development of a methodology for objective measurement of changes in treated skin relief using 3D scanning. The results are evaluated using fractal dimension. The output may also include also an enlarged model of the skin surface made by 3D printer, which can serve for illustrative communication with the client.
本文旨在介绍一种使用三维图像（3D）评估皮肤拓扑结构的新方法。
皮肤表面粗糙度的测量基于通过色差长度技术以非接触方式（即通过多色光束）对硅胶复制品进行3D扫描。使用Talymap Gold版对皮肤表面复制品进行分析。结果通过分形几何进行分析，这允许评估在使用化妆品和仪器美容技术前后皮肤表面的变化。该方法用于客观评估钻石微晶磨皮对皮肤表面粗糙度的影响。对23名年龄在31至67岁之间的志愿者进行了测量。
根据钻石微晶磨皮治疗后的皮肤表面扫描结果，可以得出结论，去角质后皮肤表面的不平等现象立即减少。然而，这种效果在治疗后14天内大多会消失。整个研究最终表明，所使用的仪器方法仅在应用后立即导致皮肤表面的改善。在应用磨皮方法期间获得了皮肤表面温度的热成像图像。实验结果表明，治疗使皮肤冷却而非加热。
本研究专注于开发一种使用3D扫描客观测量经治疗皮肤轮廓变化的方法。结果使用分形维数进行评估。输出结果还可能包括由3D打印机制作的皮肤表面放大模型，可用于与客户进行说明性沟通。
